Abstract
This paper dealed with a subject of water hammer of closure in water supply piping system of builing and the authors analysed a application of the basic equation derived from theory and experimental values. Experiments were made about a practical straight piping and the characteristic of pressure waves were analysed. Then, it was found that the characteristics of closed gate as boundary condition were calculated by substituting the experimental values into the basic equations. So the authors could be ready to calculate the basic equations of water hammer. In addition to these, the authors dealed with the relations between a closed time and a maximum pressure rising rate by water hammer of a faucet.
